Finding the Fourth Proportional to 1,558.78, 2,150.75 and 895.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558.78 : 2,150.75 = 895.39 : x
2. Step 2: Convert to fraction form
   1,558.78/2,150.75 = 895.39/x
3. Step 3: Cross multiply
   1,558.78x = 2,150.75 × 895.39
4. Step 4: Simplify right side
   1,558.78x = 1,925,756.90
5. Step 5: Solve for x
   x = 1,925,756.90/1,558.78
6. Step 6: Final answer
   x = 1,235.43